Route description

This route is home to a horde of Durant, which sometimes damage the area with their tunneling to such a degree that it must be temporarily closed. Such a case happens when the player first arrives in Anistar City, and a pair of Workers is blocking the gate's southern exit until the damage done by the Iron Ant Pokémon has been fixed. Once the player has stopped Team Flare in Geosenge Town, the damage will have been repaired, and the Workers will let the player enter the route.

Route 18 is a lush, green route with a river flowing through it. The river can be crossed either by a bridge or Roller Skate rail near a Wacan Berry tree, which can be found growing in an area behind a cuttable tree. At the east section of the route lies the Terminus Cave, an abandoned coal mine which was closed down due to the rumors of a monster living in there. Remains of former mining cart rail tracks can still be found lying outside of the cave entrances.

Inverse House

Once per day, Psychic Inver may be battled in an Inverse Battle, where type matchups are reversed so that normally super effective moves are not very effective, and vice versa (with immunities becoming weaknesses). Inver has many preset Pokémon, but only chooses a random three during the battle. In addition, his Pokémon's Abilities may vary, even potentially having their Hidden Abilities. At first, Inver's Pokémon are at level 55, but after the player has entered the Hall of Fame, their levels grow to 65.